Necessary Balance: Arbitrators’ Duty to Disclose in International Arbitration
DOI:
https://doi.org/10.35319/lawreview.202517130Keywords:
balance, party autonomy, independence and impartiality, arbitrators, duty to disclose, conflicts of interest, arbitral institutionsAbstract
This article examines the duty to disclose as a balancing device between party autonomy and the principles of independence and impartiality in international commercial arbitration. Building on the IBA Guidelines (2024) and leading institutional rules (ICC 2021, LCIA 2020, SIAC 2025), the analysis clarifies when disclosure is required, the objective standard to assess apparent bias, and the procedural role of arbitral institutions in confirmation and challenges. Selected case law —notably Halliburton v. Chubb- illustrates borderline scenarios (parallel arbitrations, law firm re- lationships, and third-party funding). The article concludes with practical recommendations to avoid hyperdisclosure while pre- serving transparency and enforceability.
Downloads
References
Born, G. (2021). International Commercial Arbitration (3rd ed.). Kluwer Law International.
Convención de Nueva York sobre el Reconocimiento y la Ejecución de Laudos Arbitrales Extranjeros, 10 de junio de 1958, 330 U.N.T.S. 38. https://uncitral.un.org/sites/uncitral.un.org/files/media-documents/uncitral/es/new-york-convention-s.pdf
Fernández Pérez, A. (2016). Conflicto de interés de arbitro que presta sus servicios en una firma de abogados de amplia cobertura internacional. Revista científica USPCEU Vol. IX, No3, 889925. https://revistascientificas.uspceu.com/arbitraje/article/view/2408/4161
Fernández Rozas, J. C. (2010). Clearer ethics guidelines and comparative standards for arbitrators. Liber Amicorum Bernardo Cremades, Madrid: La Ley.
Gaillard, E. (2010). Legal theory of international arbitration. BRILL. https://www.ibanet.org/document?id=Guidelines-Conflict-Interest-Spanish-2024
International Bar Association. (2024). IBA Guidelines on Conflicts of Interest in International Arbitration. IBA.
International Chamber of Commerce. (2021). ICC Arbitration Rules. ICC. https://iccwbo.org/dispute-resolution/dispute-resolution-services/arbitration/rules-procedure/2021-arbitration-rules/
London Court of International Arbitration. (2020). LCIA Arbitration Rules. LCIA. https://www.lcia.org/Dispute_Resolution_Services/lcia-arbitration-rules-2020.aspx
Mourre, A. (2009, 19 de mayo). Conflicts of Interest: Towards Greater Transparency and Uniform Standards of Disclosure. Kluwer Arbitration Blog. https://legalblogs.wolterskluwer.com/arbitration-blog/conflicts-of-interest-towards-greater-transparency-and-uniform-standards-of-disclosure/
Paulsson, J. (2013). The idea of arbitration (2nd ed.). Oxford University Press.
Pincheira Adolfssen, J. P. (2023). Born, Gary, International Arbitration: Law and Practice, Editorial Wolters Kluwer Law and Business. Revista Electrónica Iberoamericana (REIB), 17(1), 225–229. https://doi.org/10.20318/reib.2023.7813
Poorooye, A., & Feehily, R. (2017). Confidencialidad y transparencia en el arbitraje comercial internacional. https://journals.law.harvard.edu/hnlr/wp-content/uploads/sites/91/HNR203_crop-1.pdf
Redfern, A., Hunter, M., Blackaby, N., & Partasides, C. (2015). Redfern and Hunter on International Arbitration. Oxford University Press.
Riera, M.A. (2025). Imparcialidad arbitral y el deber de revelación de los árbitros en controversias internacionales. Trabajo de fin de Máster en Derecho de los Negocios Internacionales por la Universidad Complutense de Madrid.
Sánchez Lorenzo, S. (2020). El acuerdo de arbitraje: validez formal y sustancial. https://digibug.ugr.es/bitstream/handle/10481/71108/EL%20ACUERDO%20DE%20ARBITRAJE.pdf
Singapore International Arbitration Centre. (2025). SIAC Rules. SIAC. https://siac.org.sg/siac-rules-2025
UNCITRAL. (2006). UNCITRAL Model Law on International Commercial Arbitration (with amendments as adopted in 2006). United Nations. https://uncitral.un.org/es/texts/arbitration/modellaw/commercial_arbitration
Dallah Real Estate and Tourism Holding Co. v. Ministry of Religious Affairs of Pakistan, (2010) UKSC 46, United Kingdom Supreme Court. https://supremecourt.uk/uploads/uksc_2009_0165_judgment_2e7757cbc7.pdf
Halliburton Company v. Chubb Bermuda Insurance Ltd. [2020] UKSC 48. United Kingdom Supreme Court. https://supremecourt.uk/cases/uksc-2018-0100
High Court of Justice (Queen’s Bench Division, Commercial Court). (2015). Sierra Fishing Company v. Farran (2015) EWHC 140 (Comm). https://www.bailii.org/ew/cases/EWHC/Comm/2015/140.html
Tribunal Federal Suizo. (2008). 4A_506/2007, consid. 2.2. Tribunal Federal Suizo. https://jusmundi.com/en/document/decision/en-claimant-v-respondent-decision-of-the-swiss-federal-tribunal-4a-506-2007-thursday-20th-march-2008#decision_45366
Tribunal Federal Suizo. (2021). 4A_318/2020, consid. 3.4. Tribunal Federal Suizo. https://jusmundi.com/en/document/decision/en-world-anti-doping-agency-wada-v-sun-yang-and-federation-internationale-de-natation-fina-decision-of-the-swiss-federal-tribunal-4a-318-2020-tuesday-22nd-december-2020?utm_source
Tribunal Federal Suizo. (2023). 4A_288/2023, consid. 4.1. Tribunal Federal Suizo. https://jusmundi.com/en/document/decision/fr-crescent-petroleum-company-international-limited-crescent-gas-corporation-limited-v-national-iranian-oil-company-arret-du-tribunal-federal-suisse-4a-288-2023-tuesday-11th-june-2024
Tribunal Supremo de España. (2016). Sentencia n.o 1060/2016 (RJ 2016/1060). https://vlex.es/vid/661459713?utm_source
Tribunal Superior de Justicia de Cataluña, Sala de lo Civil y Penal, Sección Primera. (2022). Sentencia n.o 31/2022. https://www.cortevascadearbitraje.com/es/independencia-imparcialidad-arbitro-sentencia-tribunal-superior-justicia-cataluna-veinte-julio-2022
Tribunal Superior de Justicia de Madrid, Sala de lo Civil y Penal, Sección Primera. (2015). Sentencia n.o 10/2015. https://web.icam.es/bucket/STSJM%202018%20Anulacion%20Laudo.pdf?utm_source
Corte de Apelación del Distrito Nacional de República Dominicana. (2016, 29 de agosto). Sentencia que declara la nulidad del Laudo Arbitral Final No. 1311213 (6 de enero de 2016) — Estación de Servicios Esso On The Boulevard, S.R.L. v. Esso República Dominicana, S.R.L. https://arbitrajeraci.wordpress.com/wp-content/uploads/2018/07/sentencia-de-la-corte-de-apelacic3b3n-del-distrito-nacional-tercera-sala-de-la-cc3a1mara-civil-y-comercial-de-29-agosto-2016.pdf
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2025 UCB Law Review

This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
The U.C.B. Law Review is an Open Access Journal, therefore, it is full free for access, reading, search, dowload, distribution and lawfull reuse in any medium only for non-comercial purposes, provided the original work is properly cited.